565249 has 4 divisors (see below), whose sum is σ = 580564. Its totient is φ = 549936.

The previous prime is 565247. The next prime is 565259. The reversal of 565249 is 942565.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270400 + 294849 = 520^2 + 543^2 .

It is a cyclic number.

It is not a de Polignac number, because 565249 - 2¹ = 565247 is a prime.

It is a d-powerful number, because it can be written as 5 + 6 + 2¹⁵ + 5 + 4⁵ + 9⁶ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565249.

It is not an unprimeable number, because it can be changed into a prime (565241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7602 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (145141).

It is a Proth number, since it is equal to 69 ⋅ 2¹³ + 1 and 69 < 2¹³.

2⁵⁶⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

565249 is a deficient number, since it is larger than the sum of its proper divisors (15315).

565249 is a wasteful number, since it uses less digits than its factorization.

565249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15314.

The product of its digits is 10800, while the sum is 31.

The square root of 565249 is about 751.8304330100. The cubic root of 565249 is about 82.6824367966.

The spelling of 565249 in words is "five hundred sixty-five thousand, two hundred forty-nine".